Volume 22: Sustainable Energy Solutions for a Post-COVID Recovery towards a Better Future: Part V

Effect of Different Liquid/Gas Diffusion Layers on the Performance of Proton Exchange Membrane Water Electrolysis Shiye Zhang, Kui Jiao, Bingfeng Zu, Linhao Fan

Abstract

Proton exchange membrane water electrolysis (PEMWE) is a potential method of hydrogen production. The liquid/gas diffusion layer (LGDL) is of great significance for PEMWE performance. In this work, the untreated carbon paper, titanium mesh and titanium fiber paper are adopted as the anode LGDL, respectively. The polarization curves and electrochemical impedance spectroscopy are measured and compared in detail. The results indicate that the carbon paper as the anode LGDL shows the best electrolysis performance with the low ohmic resistance and interface resistance. And the high interface resistance is the dominated factor that affects the electrolysis performance of PEMWE with the titanium mesh and titanium fiber paper.

Keywords Proton exchange membrane water electrolysis, Hydrogen production, Anode liquid/gas exchange layer